小编Yog*_*shM的帖子

即使在运行时授予了WRITE_EXTERNAL_STORAGE,App也无法写入Android 6.0上的外部存储(我在模拟器上进行测试); 除非应用程序被杀死并重新启动.

来自AndroidManifest.xml的代码段

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

的build.gradle

android {
compileSdkVersion 23
buildToolsVersion "23.0.1"

defaultConfig {
    ......
    minSdkVersion 15
    targetSdkVersion 23
}

每当我需要写入外部存储器(用于备份)时,我会检查是否有权限.

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M &&
                    getActivity().getBaseContext().checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, PERMISSION_REQUEST_RW_EXTERNAL_STORAGE);
                mPendingAction = PendingAction.Backup;
            } else {
                BackupRestoreService.startBackup(getActivity().getBaseContext());
            }

我也有以下内容

    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        Log.d("SettingsActivity", "grantResultsLength: " + grantResults.length);
        if (requestCode == PERMISSION_REQUEST_RW_EXTERNAL_STORAGE) {
            Log.d("SettingsActivity", "grantResultsLength: " + grantResults.length);
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) …